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BSCCO ceramics doped with ferromagnetic manganite phases♣

A. STANEVA1,* , A. STOYANOVA-IVANOVA2, S. TERZIEVA2, J. SHOUMAROVA1, K. GRIGOROV3, A. ZALESKI4, V. MIKLI5, CH. ANGELOV6, Y. DIMITRIEV1

Affiliation

  1. University of Chemical Technology and Metallurgy, 8 Kl. Ohridski, 1756 Sofia, Bulgaria
  2. Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
  3. Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
  4. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-950 Wroclaw, Poland
  5. Centre for Materials Research, Tallin Technical University, Ehitajate 5, Tallin 19086, Estonia
  6. Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria

Abstract

Bulk superconducting BSCCO ceramics involving a manganite phase have been obtained by two different methods: solid state synthesis and a low temperature sol-gel method. The microstructure of these materials was studied by scanning electron microscopy (SEM), X-ray diffraction and using the method of energy dispersive spectroscopy (EDX). The results suggest that the composites reveal superconductivity (at 86.6K). The obtained samples have dense structures which preserve the La-manganite phase as fine grains on the boundary with Bi phases. This composite is a potential candidate as a multifunctional material for applications in microelectronics..

Keywords

Composites, Ceramic superconductors, BSCCO, Manganites.

Submitted at: Nov. 5, 2008
Accepted at: Oct. 3, 2009

Citation

A. STANEVA, A. STOYANOVA-IVANOVA, S. TERZIEVA, J. SHOUMAROVA, K. GRIGOROV, A. ZALESKI, V. MIKLI, CH. ANGELOV, Y. DIMITRIEV, BSCCO ceramics doped with ferromagnetic manganite phases♣, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 10, pp. 1541-1544 (2009)